Due jig



March 3, 1931. F. N. BENDELARI ORE JIG Filed July l1 gnam/nto@ 7:5555. far/ninfaF4514525414155114511.: n

Patented Mar. 3, 1931 l UNITED STATES iemlgzNe'IA OFFICE FBEDRICO NAPOLI BEDELARI, OF JOPLIN, MISSOURI ORE J IG vApplication mea July 11,

This invention .relates to ore separating or concentratmg apparatus and more partlcularly to puiating ore jigs. v n

' tion. lln this showing:

The pri ipal object of this invention is to provide a compact and relatively inexpensive ore jig which is rapid and elicient in its o eration.

Anot er object of this invention is to proyvide a pulsatmg ore jig wherein the pulsavide a pulsating ore jig wherein the pulsion.

e'e'ct of the plunger on the bedvof oreto be separated is greater than the suction effect whereby a more complete andrapid separation of the ore is effected.

Other objects and advantages of the invention will become apparent from the courseof the following description.

1n the accompanying drawings 1 have shown a preferred embodiment of myinven- Figure 1 is a side view,

Figure 2 is a vertical sectiontaken on line 2-2of Figure 1, Figure 3 is a section taken on line 3-3 of l Figure 2, and,v

Figure 4is a detail view of the chatter.

AReferring to the accompanying drawings reference. numeral 10 indicates a plurality( of upright supports preferably steel Lbeams to which are secured in any suitable manner walls 11 preferably formed of sheet metal to form alhopper 12. The lower wall or plate 13 is inclined as shown in Figure 2 to form a hutch 12. 1n the upper portion of the hopper 12 is arranged a grate 14 on which is arranged a sieve or screen 15 of any desired mesh. A cell 16 is provided above the grate 14 and the sieve or screen 15 and isopen on one side thereof to discharge material upon 1927. .Serial No. 204,843. v I

the spout 17. A tail board 18 extending longltudinally of the discharge opening in the cell 16 is arranged between the interior of the cell and the spout 17. A'chatter 18 is arranged adjacent the tail board 18 and extends longitudinally of the cell'l and through one sidewall thereof and communicates with any suitable discharge spout (not shown). The

chatter 18 preferably consists of a pipe proj vided with a ings 19'. p l

A diaphragm support 19 is arranged in the lower portion of'the hopper 12 and is provided with a plurality of openings20 communicating with the hutch 12-l A Hexible diaphragm 21 substantially spheral in shape and preferably Aformed of rubber of'a suitable thickness isy secured to the diaphragm support 1 9 by means ofan annular ring 22 arranged above the edge of the diaphragm 21 and secured to the support 19 in any suitable manner as' by means of nuts and bolts 23. The diaphragm 21 isfsecured to a reciprocating plunger rod 24 by means of a pair of disks 25 arranged above and below the diaphragm VAand secured together by ,means of nuts and` ,bolts 26. A threaded restricted portion 27 of the plunger 24 is received in openings in the disks or plates 25 and in the diaphragm 21 and the disks are secured in position against a collar l28 on the of a nut 29.

The plunger rod 24 passes through a cylindrical pipe 30 secured to the diaphragm support 19 and the lower inclined plate 13 plurality of alined yspaced open-l plunger 24 by means ofthe hutch 12 and is detachably secured to the eccentricstrap 31 carried by the eccentric 32 mounted on the shaft 33. The shaft 33 is suitably mounted in journals 33 carried by Vcross beams 34 secured to the uprights 10. A driving pulley 35 is secure to oneI end of the shaft 33 and a balance or y wheel 36 is see cured to the other end of such shaft;

Water is supplied to the hopper 12 from the pipe 37 provided with a. check valve 38.

A discharge spout 39 is arranged in the lower portion ofthehutch 12 and is provided with. -ja control gate 40.

`The operation of the apparatusis as'folldws:

rllhe ore to be treated is introduced into the i cell 16 and a suitable amount of water is introduced into the hopper 12 and the hutch 12 from the pipe 37. The pulley 35 is rotated from any suitable source of power (not shown) and a reciprocating movement is imparted to the plunger rod 24 by means of the eccentric 32 and the strap 31. rlhis reciprocating movement of the plunger 24: imm parted to the diaphragm .21, causes `thewater in the hopper 12 to pulsate through the grate 111, 'the sieve or screen 15 and the bed of ore arranged thereon. The shaft 33 is designed to rotate at a relatively high speed in order l5 to give rapid pulsations to the body of water in the hopper 12. Moreover, the eccentric 32 is designed to impart a relatively short` stroke to the plunger rod r24, it having' been 'discovered that-the 'ore is more effectively 2@ separated from the waste material in the cell y 3@ tion stroke thereby admitting water freely during the last named stroke. lin this manner the material on the sieve or screen is forced sharply upwardly on the pulsion stroke of the diaphragm 21 but settles more gradually during the downward stroke of the diaphragm.

The finely divided ore passes through the sieve or screen 15 into the hopper 12 andl f thence through the openings 20 into the hutch 40 12. The line ore in the hutch may be drawn od as desired through ther spout 39. The larger particles of ore andd chats stratify into layers on the sieve or screen 15 during'the Separating operation and are retained thereon by means of the tail board 18. The lighter chats or waste materials are carried'over the chatter 18P with the discharge water onto the spout 17.L rllhe richer chats are drawn od by thechatter 18. i

lt will be readily apparent that by providing a flexible diaphragm` directly beneath the ore grate that the separate plunger compartments commonly employed in the type of jigs heretofore employed are dispensed with thereby making the jig more compact and less cumbersome. 'Moreover, by

Vmaking the jrg of sheetmetal the device is `:'"lighter and more readily assembled than the e@ jigs heretofore used.

lVhile 1 have shown andV described a jig` consisting of asingl cell or unit it will be readily apparent that the jig may be formed of a plurality of cells or units by mechanicalv ly connecting the separate'units together andl operating them vfrom a single source of power.

While l have described in detail the preferred embodiment of my invention it is to be understood thaty various changes in the size, shape and arrangement of parts may be resorted to without departing from the spirit ofthe invention or the scope of the subjoined claims.

ll claim:

1. ln a jig of the character described, a

`tank adapted to contain liquid and divided by a stationary partition into a compartment above said partition and a closed chamber below said partition, said partition having an opening therein, an imperforate plunger of flexible material attached-to said partition around said opening, there being passages in the partition disposed around the flexible plunger, said passages being adapted to deliver to said closed chamber, means connected to said flexible plunger through said opening r,for operating said plunger, and means for withdrawing material from said closed chamber.

2. ln a jig of the' character described, a tank adapted to contain liquid and divided by a stationary partition into a compartment above said partition and a-closed chamber below said partition, said closed chamber `having a central /tubular opening therethrough communicating at its upper end with said compartment and at its lower end with a space below said chamber, an imperforate plunger of flexible material attached to said partition around the upper end of said opening, saidpartition being provided with passages disposed around the flexible plunger and adapted to deliver to said closed chamber, means connected tosaid flexible plunger through said tubular opening for operating said plunger, and means for withdrawing material from said closed chamber.

ln testimony whereof' l affix my signature FREDERIC@ NIPlLl BENDELARH. 

